Shigehiro Ohnuma — 3 Patents at Unknown

Shigehiro Ohnuma has been granted 3 US patents while listed as an inventor at Unknown. The first was granted in 1986 and the most recent in November 2003. Shigehiro Ohnuma ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Shigehiro Ohnuma in Rifu, JP.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
6642714	Thin-film magnetic field sensor	Nobukiyo Kobayashi, Takeshi Yano, Kiwamu Shirakawa, Tsuyoshi Masumoto	2003-11-04
4688130	Perpendicular magnetic recording medium and production process thereof	Yukio Nakanouchi, Tsuyoshi Masumoto	1987-08-18
4584078	Method of producing fine particles	Yukio Nakanouchi, Tsuyoshi Masumoto	1986-04-22

Shigehiro Ohnuma — 3 Patents

Issued Patents All Time

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